Harrow attachment for plows.



U. R. 8; C. G. HOLLAND. HAREOW ATTACHMENT FOB. FLOWS.

APPLIOA'IION FILED AUG.17, 1914.

Patented Mar. 2, 1915.

Attorneys THE NORRIS PETERS cO.. PHOTO-LITHQ, WASHING/ON, n. c.

cn'annns n. HOLLAND AND, CHRISZIIOBHEB o; HOLLAND; as rernoav ntn; rumors,

Hana-ow arm-entrants FOR FLOWS;

Twill whom it may concern Be it known that we, .Crm'RnEsRl Humans and Gnnrsromrnn:CsHioLnAnmcitizens: offthe United States, residing; at 'l aylorvillefln the county of Qhristiang, State; of Illinoia have invented a new and useful Harrow Attachment forPlowapt which the'fol lowi ng is a specification, V

The present invention appertainsi to harrows, and aims toprovide a novel and improved harrow attachment for wheel mount ed: or riding'plow-s;

The present invention con-templates the provision of a harrow' attachment, whereby a harrow may be" connected to a wheel mounted or riding plow frame convenient and eificientmanner, so that the harrow may trail from the plow" frame a still} further object of the-invention being to provide a novel dpcrative connection betweerr the liarrow' and plow frame whereby" the harrow teeth may hev readily swung to cleaning. or clearing position whenever they are clogged with trashor accumulations: i

It is also within the scope of the preesnt invention, to provide an appliance of the: nature: indicated; which: will enable theharrow to move: freely as it trails; int rear of the; plow frame, and without impairingthe operative: connection between the harrow and plow frame for swinging the harro-w teeth.- lVith the foregoing and other objects in view which will appear as the description proceeds, theinvention resides in the combination? and arrangement-of parts and in" the details of construction hereinafter described; and claimed, it being understood that changes in theprecise? embodiment of the in-- vention" herein disclosed can: be? made within the" scope of what is" claimed without de-- parting from the spirit of the" invention.v

The invention has been illustrated its:

' preferred embodiment in the: accompanying" Specification of Letters Patent;

Patentcdilwam2i, rat-r5;

Application filedAngustl'Y, 1914. senailvms'smos. i

being; illustrated, since it, is no part of the present appliamcemn d may beef anycon-venr tional type; In carrying out the present in ven-tion,,thfe;attachment embodies a laterally pro ecting arm; 2 having;v one end attached in any suitablama-nner, to the: rear end of theplow framel, so that the: arnr 2 projects from one side of the plow; The liarrow 3 whichrmay" be. of any suitable type, is con:- nected to the; free'or outer end; of thearm 2 to trail inrear thereof, the barrow comprising a frame'including, thebars 4 through which the rock shafts 5, are: jzournaled and to which shafts the depending on downwardly projecting harrowteeth 6 are clamped or socured in any: suitable manner. The shafts 5; are caused to swing in unison; by means of upstanding arms? secured to the rock shafts 5:, andE connected by the respective links or strips 8ts As illustrated, there are three sets ofthe-arms? and linksw8, although this isnot materi aliv In order to connect the harrow 3- with the freeen d of'the arm 2,. a pair of draft rods 9 have their rear ends connected loosely to the forward ends of the side bars 4 of the harnotv anditherdraft rods 9=converge forwardly and are inclined and have their forward ends connected; to! the free end: of the arm 2 by a suitable flexible or universal joint or couplingv 10 In thismanner, the draft rods plow frame 1 and the harrow 3,- toenable theplow teeth 6 to be swung: into and out of Operative: position, a rock shaft 11 is journalred through bearings l2secured to the arm 2, and is" provided at its outer end with a downturned arm 13 having a bearing block 142 sWiv-eled upon: its lower end. A link or connecting rod 15' is provided with a fork 16: at its forward end trunnioned or pivoted to thersides; of the: bearing block 1 4:, whereby the link or connecting rod 15 is: connected to the arm 13 by a flexible or universal joint The rear" end. of the link or connecting rod 15 is pivotally connected to the forward end or the intermediate link 8-, so that the osci'l latiorr of the shaft 11 will reciprocate the corresponding link 8 for rocking the rocking shafts 5. The link or connecting rod 15 being pivoted to the bearing block 14 and the said bearing block being swiveled to the arm 13 of the shaft 11, will enable the link or connecting rod 15 to swing vertically and horizontally with the draft rods 9 when the harrow 3 moves vertically and laterally.

The inner end of the rock shaft 11 is provided with a downturned arm or crank 17 to which a pitman or link 18 is connected, the. said pitman or link 18 being connected in turn to the lower end of the hand lever 19 fulcrumed upon a bolt 20 secured through thecorresponding side of the plow frame 1, whereby the hand lever 18 in being oscil-' lated will oscillate the shaft 11. The hand lever 19 is provided with a suitable pawl or dog 21 for engaging a segment or rack 22 secured upon thecorresponding side of the plow frame 1, for holding the hand lever at any positionto which it is swung.

A brace 23 preferably connects the fulcrum bolt 20 and the free end of the arm 2, to prevent the arm 2 from flexing or bending rearwardly due to the draft created by the drag of the harrow over the soil.

In order to assist in swinging the plow teeth 6 rearwardly to cleaning position, a coiled wire I re'tractile spring 23 connects the upper end of a standard 25 carried by the intermediate bar 4 of the harrow, and an arm- 26 projects from the front rock shaft 5 of the harrow, whereby the spring 24 will have a tendency to swing the shafts 5 in such a direction as to move the harrow teeth Grearwardly to cleaning position. The ef fect of the spring 24, however, is ordinarily resisted due to the fact that the link or connecting rod 15 will ordinarily hold the shafts'5 in normal or active position, when the hand lever 19 is swung and set properly.

In practice, the present invention may be readily applied to various wheel mounted or riding plow frames, as will be obvious from the foregoing. Then, as the plow is drawn over the soil, the harrow 3 will trail in rear to pulverize or granulate the superficial portion of the soil. As above pointed out, the harrow is free to move vertically and laterally, due to irregularities in the surface of the soil, and without impairing the operative connection between the harrow and operating lever 19. The operator who is seated upon the plow frame 1 may readily clean the .harrow whenever it becomes clogged with trash or accumulations, and

to this end it is merely necessary for the operator to swingthe hand lever 19 properly to rock the shaft 11 in-such a direction asto move the link or connecting'rod 15 forwardly. This will cause the shafts tobe Copies of thls patent may he obtained for they will be cleared of any accumulations,

as will be evident. As soon as the harrow I has been cleaned, the harrow teeth may be returned to normal or active position by swinging the hand lever 19 in the proper direction to pull the link 15 forwardly. As above intimated, when the hand lever 19 is swung to bring the harrow teeth to cleaning position, the spring 24 will assist in moving the harrow teeth rearwardly.

Having thus described the invention, what is claimed as new is 1. In a device of the character described, a plow frame, a trailing harrow having swinging teeth, a member attached to the plow frame, draft rods loosely connected to the harrow and having a universal joint with the said member, an oscillatory arm carried by the said member and constituting a portion of an actuating mechanism, a link operatively connected to the harrow to swing the teeth thereof, and a universal joint connecting the said link and arm.

2. In a device ofthe character described, an arm attachable to a plow frame, a harrow having swingable teeth, draft rods flexibly connecting the harrow and the free end of the said arm, a shaft journa-led to the said arm and having arms at its ends, a link connected to one arm of the said shaft and connected operatively to the harrow for swinging the teeth thereof, a hand lever attachable to the plow frame, and a link connecting the hand lever and the other arm of the said shaft.

3. In a device of the character described, a member attachable to a plow frame, a bar row including a frame, rock shafts journaled to the frame and harrow teeth carried by the rock shafts, the said rock shafts having upstanding arms, a link pivotally connecting the said arms, a pair of converging draft rods loosely connected to the harrow frame, a universal joint connecting adjacent ends of the draft rods and first mentioned member, an oscillatory arm carried by the first mentioned member, and constituting a portion of an actuating member, a link connected to. aforesaid link, and a universal joint connecting the last mentioned link and the said oscillatory arm.

In testimony that we claim the foregoing as our own, we have hereto ailixed our signatures in the presence of two witnesses.

CHARLES R. HOLLAND.

CHRISTOPHER O. HOLLAND. Witnesses:

ELLIs HOLLAND,

COLUMBUS HOLLAND.

five cents each, by addressing the Commissioner of l a tents,

Washington, D. G." g Y 

